Post mounted attachment to function as a bicycle lock



FIG. 1 is a front elevational view of the post mounted attachment to function as a bicycle lock showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof with the bottom plan view being identical;

FIG. 4 is a left side view thereof; and,

FIG. 5 is a right side view thereof. 

The ornamental design for a post mounted attachment to function as a bicycle lock, as shown and described. 